package main

import (
	"fmt"
)

func main() {
	first := 100
	second := 200
	fmt.Println("first=", first, ",second=", second)
	swap(&first, &second)
	fmt.Println("first=", first, ",second=", second)

}

func swap(a *int, b *int) {
	*a, *b = *b, *a
}
